Question

Scientists say human activity contributes to climate change, but they do not agree on the rate_______ climate change may be developing

1. A.
   with which
2. B.
   with that
3. C.
   at which
4. D.
   at that

Answer 1

B
试题分析：此处with是介词，其后是介词的宾语从句，that在宾语从句中不作成分，没有意思，只起连接作用。句意：科学家们说人类活动导致气候变化，但是他们不同意气候变化的速度。
考点：考查宾语从句的连接词。